/Engine/Source/Runtime/SlateCore/Public/Application/SlateApplicationBase.h
true if 'WindowToTest' is being used to display the current tooltip and the tooltip is interactive.
bool IsWindowHousingInteractiveTooltip ( const [TSharedRef](API\Runtime\Core\Templates\TSharedRef)< const [SWindow](API\Runtime\SlateCore\Widgets\SWindow) > & WindowToTest ) const